jmri.jmrix.nce
Class NceTurnoutMonitor

java.lang.Object
  jmri.jmrix.nce.NceTurnoutMonitor

All Implemented Interfaces:

PropertyChangeListener, EventListener, AbstractMRListener, NceListener

public class NceTurnoutMonitor
extends Object
implements NceListener, PropertyChangeListener

Polls NCE Command Station for turnout discrepancies This implementation reads the NCE Command Station (CS) memory that stores the state of all accessories thrown by cabs or though the comm port using the new binary switch command. The accessory states are storied in 256 byte array starting at address 0xEC00. byte 0, bit 0 = ACCY 1, bit 1 = ACCY 2 byte 1, bit 0 = ACCY 9, bit 1 = ACCY 10 byte 255, bit 0 = ACCY 2041, bit 3 = ACCY 2044 (last valid addr) ACCY bit = 0 turnout thrown, 1 = turnout closed Block reads (16 bytes) of the NCE CS memory are performed to minimize impact to the NCE CS. Data from the CS is then compared to the JMRI turnout (accessory) state and if a discrepancy is discovered, the JMRI turnout state is modified to match the CS.

Author:

Daniel Boudreau (C) 2007

Field Summary

static int

CS_ACCY_MEMORY

Constructor Summary

NceTurnoutMonitor(NceTrafficController t)

Method Summary

void	message(NceMessage m)
NceMessage	pollMessage()
void	propertyChange(PropertyChangeEvent e)
void	reply(NceReply r)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

CS_ACCY_MEMORY

public static final int CS_ACCY_MEMORY

See Also:

Constant Field Values

Constructor Detail

NceTurnoutMonitor

public NceTurnoutMonitor(NceTrafficController t)

Method Detail

pollMessage

public NceMessage pollMessage()

message

public void message(NceMessage m)

Specified by:

message in interface NceListener

reply

public void reply(NceReply r)

Specified by:

reply in interface NceListener

propertyChange

public void propertyChange(PropertyChangeEvent e)

Specified by:

propertyChange in interface PropertyChangeListener